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Move the chain saw at least 10 feet (3 m) from the fueling point before starting the engine. 4. Do not allow other persons to be near the chain saw when starting or cutting with the chain saw. Keep bystanders and animals out of the work area. 5. Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree. 6. Hold the chain saw firmly with both hands, the right hand on the rear handle and the left hand on the front handle, when the engine is running. Use a firm grip with thumbs and fingers encircling the chain saw handles. 7. Keep all parts of your body away from the saw chain when the engine is running. 8. Before you start the engine, make sure the saw chain is not contacting anything. 9. Carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body. 10. Do not operate a chain saw that is damaged, improperly adjusted, or is not completely and securely assembled. Be sure that the saw chain stops moving when the throttle trigger is released. 11. Shut off the engine before setting it down. 12. Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance. 13. When cutting a limb that is under tension be alert for spring back so that you will not be struck when the tension in the wood fibers is released. continued on the back inside cover —► Congratulations! You are the owner of a precision-manufactured STIHL chain saw designed to give you long and dependable service. To receive maximum performance and satisfaction from your STIHL chain saw, it is important that you read and understand the maintenance and safety precautions before using your saw. Contact your STIHL Dealer or the STIHL Distributor for your area if you do not understand any of the instructions or warnings in this Manual. This Manual contains warnings regarding your saw, operating and safety instructions for all STIHL 031 series power saws. Vferning! Because a chain saw is a high-speed wood-cutting tool, some special safety precautions must be observed as with any other power saw to reduce the risk of personal accidents. Careless or improper use may cause serious or even fatal injury. It is important that you fully understand the contents of this Manual and that you allow only persons who understand this Manual to operate your chain saw. Pay special attention to the cutting techniques and safety precautions outlined on pages 4 to 19. STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time-to-time. Written notices relating to such changes are sent to STIHL Dealers and are available to you. If the operating characteristics or the appearance of your saw differs from those described in this Manual, please contact your local STIHL Dealer for updated information and assistance. STIHL 031 AV, 031 AV electronic, 031 AV electronic Quickstop Instruction Manual/Owner’s Manual, Sharpening and Maintenance of Saw Chains Contents Parts of the Chain Saw 2 Safety Precautions 4 - The Operator 4 - The Saw 6 - The Use of the Saw 6 - Maintaining and Storing the Saw 19 Fuel 20 Chain Oil 20 Mounting Guide Bar and Chain 21 Chain Brake 22 Starting 24 Oil Quantity Control 26 Cutting Attachment 27 Replacing Chain Sprocket 29 Air Filter 30 Carburetor 31 Rewind Starter 32 Maintenance Chart 34 Specifications 35 Sharpening and Maintenance of Saw Chain 37 ® Andreas Stihl w Postfach 1760 D-7050 Waiblingen 1 Parts of the Chain Saw 19 Chain guard 20 Muffler 21 Starter grip 22 Fuel filler cap 23 Oil filler cap 24 Stop switch Starting throttle lock 15 Safety throttle lock 16 Throttle trigger 17 Choke lever 18 Definitions 1. Oilomatic Saw Chain. A loop consisting of cutters, tie straps and drive links. 2. Guide Bar. Supports and guides the saw chain. 3. Guide Bar Nose. The exposed part of the guide bar. 4. Bumper Spike. Toothed stop for holding saw steady against wood. 5. Chain Brake. An optional device to stop the rotation of the chain if activated by the operator’s hand in a kickback situation. 6. Front Hand Guard. Provides protection against projecting branches and helps prevent the left hand from touching the chain if it slips off the handle bar. 7. Front Handle. Handle bar for the left hand at front of saw. 8. Spark Plug Terminal. Connects the spark plug with the ignition wire. 9. Rear Handle. The support handle for the right hand, located at or toward the rear of the saw. 10. Twist Lock. Lock for carburetor box cover. 11. Rear Hand Guard. Gives added protection to operator’s right hand. 12. Clutch. Couples engine to chain sprocket when engine is accelerated beyond idle speed. 13. Chain Sprocket. The toothed wheel that drives the saw chain. 14. Chain Sprocket Cover. Covers the clutch and the sprocket. 15. Starting Throttle Lock K...